The Affordable Care Act, or Obamacare, is not without faults. Dissatisfaction has risen alongside annual deductibles, monthly premiums, and drug costs over the past two years. Four in ten enrollees fear getting seriously sick because they do not have the savings to pay the associated costs. Half found it difficult to select an affordable plan in the first place. And while increases in premiums and deductibles for job-based insurance have slowed down since the ACA’s enactment, workers’ wages failed to keep pace. Therefore, it comes as no surprise that nearly half of enrollees view the Affordable Care Act unfavorably.

A woman interviewed by Vox said that she purchased insurance through the ACA “to keep from losing my house if something major happened.” A $6,000 deductible has left her “… totally afraid to be sick. I don’t have [that money] to pay upfront if I go to the hospital tomorrow.”

Nevertheless, increasing numbers of individuals enroll onto the ACA every year. Today, nearly 20 million Americans have healthcare because it. And while cost may be an issue, a majority of Democrats, Republicans, and Independents have favorable opinions of many of the ACA’s provisions including Medicaid expansion to cover low-income uninsured adults and increasing the Medicare payroll tax on earning from upper-income Americans.

This explains why, among the 52% of Republicans (26% of Americans) who want the ACA repealed, two-thirds want it replaced with an alternative — with 42% wanting lawmakers to wait until they have figured out a replacement before repealing. Unfortunately, Republican representatives disagree. Senate Majority Leader Mitch McConnell defended his plan to repeal Obamacare soon after Trump’s inauguration. He insisted Republicans would act later in the year on legislation would result in better and less-expensive care. “We plan to take on this challenge in manageable pieces,” he said Thursday, adding that there will be “bumps along the way.”

Republican voters are rightly worry about a hasty repeal without a well thought out replacement. None of the plans discussed by party leaders keep the Medicaid expansion introduced by Obamacare. Repealing the expansion would leave millions of low-income Americans uninsured — including many who are now receiving treatment for substance abuse disorders like opioid addiction. In Kentucky, drug addiction treatment rose 740% during the expansion and in Ohio, over half its Medicaid expansion enrollees have received mental health and drug treatment services.

Neither do their current plans address the problem of high deductibles. House Speaker Paul Ryan proposed expanding the use of health savings accounts alongside high-deductible health plans. However, the tax breaks offered by HSAs are too modest to help low-income people. And because HSA funds are not insured, a market crash could result in millions of Americans no longer able to afford their healthcare. In a survey of individuals with HSA-eligible plans, participants only recommended them to healthy consumers. They felt those who use maintenance medication, have a chronic condition, or have children may not have the funds to meet the high deductible. To give the more generous subsidies for premiums and deductibles Republican voters are actually requesting, the Republican Congress would have to increase taxes — a proposition which does not seem likely.

So why does the Republican Congress wish to repeal the Affordable Care Act before ensuring they will be able to take care of their constituents? One reason is to please their wealthy donors. To pay for subsidized premiums and the Medicare expansion, the ACA created two taxes only for high-income individuals — the Medicare surtax and the net investment tax. By cutting these taxes, the top one percent, who make $700,000 or more, would receive a tax cut of $25,000. The top 0.1 percent would get a tax cut of $165,000.

Trump’s supporters do not believe he should give millionaires and billionaires tax breaks they do not need if it means taking away the healthcare that millions of low and middle class working Americans need. It seems then, the majority of Americans — Democrats and Republicans alike — do not wish to see Obamacare stripped away.

“I guess I thought that, you know, he would not do this, he would not take health insurance away knowing it would affect so many people’s lives,” says Debbie Mills, an Obamacare enrollee who supported Trump. “I mean, what are you to do then if you cannot pay for insurance?”

Senator Bernie Sanders has called for a January 15th “Day of Action” to oppose the cuts to health-care plans and subsidies the Republicans support. “Millions of Americans voted for Donald Trump after he promised not to cut Social Security, Medicare and Medicaid,” wrote Sanders in a letter to Congress. “He must be held to his promises and should veto any legislation which cuts these vital and necessary health programs.”