UNSUCCESSFUL Liberal candidate Andrew Nguyen has blamed his brutal election defeat in the seat of Fowler on his party's lack of "ethnic brain".

In a state that showed a swing of 3 per cent away from the ALP, the seat of Fowler saw a record 9.5 per cent swing toward incumbent Labor MP Chris Hayes, giving him an impressive 18.3 per cent margin.

Speaking to the Liverpool Leader for the first time in more than a month, Mr Nguyen did not make any attempt to hide his anger.

"I am angry, so angry," the 74-year-old said.

"It is a disaster for the Liberals in the western Sydney area."

Mr Nguyen, a Vietnamese refugee and local powerbroker, said the Liberal Party will never hold seats in western Sydney because they underestimate ethnic people instead of treating them with respect.

"The Labor candidates were everywhere in western Sydney, they went to every suburb with a large concentration of ethnic people and migrant refugees," he said.

"Where were the Liberals? We were nowhere because the party just looked for a nationwide win."

Part of the Liberal Party's strategy was to prevent candidates from speaking freely to the media, Mr Nguyen said.

"No one in western Sydney was allowed to talk, it was party policy," he said.

"I was requested on many occasions to talk on Vietnamese radio, to speak with people from the Vietnamese newspaper and even the Liverpool Leader but I couldn't.

"I was not allowed to talk to anyone, I was told to turn off my phone.

"When the party restricts me, it is very hard for me to win. You have to earn the respect of every individual in the area. I didn't do that."

He understands why few people wanted to vote for him.

"People in Fowler wanted answers, they wanted to know what was happening and to hear from their Liberal candidate and I wasn't there to answer their questions - I couldn't even answer calls," he said.

"They call me a rubbish candidate. That's why they didn't vote for me, because I didn't show respect to them.

"If you show respect, they will return the same respect. I've shown no respect to them so how can I expect them to show any respect to me by voting for me?"

Mr Nguyen said the Liberal Party won't win seats in western Sydney until they appreciate and understand different cultures.

"Ethnic culture is different from non-ethnic culture and the Liberal Party has no policy to campaign with ethnic people," he said.

"There is no ethnic brain in the party at all, not like Labor."

This is something Mr Nguyen said the party needs to improve if they want to have success in the west.

"The Liberals will never, ever win in the western Sydney region because it's the Labor Party that looks after ethnic people," he said.