Reqs

Genesect has been a phenomenal Pokémon ever since its release back in BW. Its solid stats and Download ability, alongside its amazing coverage makes it an exceptionally good Pokémon. Even to this day, where power creep has gotten this big, Genesect is still considered one of the best Pokémon in the OU tier, because of the aforementioned reasonings. Even now, Genesect is on the chopping block yet again. I personally really think Genesect is absolutely the most banworthy Pokémon that we have at this current moment, so I think Genesect should getFirst of all, Genesect is simply very difficult to deal with in practice. Its insane amount of viable coverage moves it can run makes the whole game against Genesect a guessing game. This especially goes for the Expert Belt set. The Expert Belt set, consisting of U-turn, Thunderbolt, Flamethrower and Ice Beam, is already very hard to consistently deal with. Hard checks to this set would be Pokémon like Heatran and Rotom-Heat, as they take pretty much any attack reliably well and can punish it with any Fire move. However, neither of these two Pokémon outspeed Genesect, which allows Genesect to just U-turn out and force chip damage on both of these checks. Doing this will eventually result in both of these Pokémon being at too low of a percentage to consistently keep checking Genesect throughout the game. +1 Thunderbolt against Heatran does like 40%, which puts Heatran under enormous amount of pressure, as it just can't afford to lose any sort of health throughout the game. Rotom-Heat, while being a very solid check (especially with HDB, making it immune to Rocks and thus avoiding chip), still gets U-turned out on and doesn't necessarily like constantly switching into Genesect's moves. And this is only the Expert Belt set. What if it's the more niche Douse Drive? Both Heatran and Rotom-Heat can't reliably check Genesect anymore, forcing you to use Pokémon like Chansey, AV Magearna, or Mega Venusaur alongside either Heatran or Rotom-Heat to check Genesect. But what if it's Shift Gear Steelium? Genesect is just very unpredictable and it's hard to figure out each and every set just from team preview, if it's even 100% possible at all.The latter part of the last argument can also be applied to the fact that Genesect is just insanely hard to account for in teambuilding. It's practically impossible to reliably cover any Genesect set out there, or even the most common sets at that. Steel types like SpDef Aegislash or even Scarf Magnezone could theoretically check it, and might even be able to at times, but are in practice just never going to give you enough counterplay. Even if you have a Heatran or Rotom-Heat alongside these Pokémon, the fact that Genesect is just so incredibly versatile and can run so many different sets makes it just insanely hard to deal with. It's especially hard to deal with since we also have so many other giant threats in the metagame we have to take into account while teambuilding; Zygarde, Mega Metagross, Aegislash, Mega Blastoise, Kartana, Galarian Darmanitan, (Ash) Greninja, Volcarona etc. These Pokémon, combined with Genesect also being in the meta, really restricts the metagame as a whole and will eventually result into a very centralizing and one dimensional meta.However, there might be a few arguments out there that are in favour of keeping Genesect. One of the most common arguments for keeping Genesect is that its speed tier is relatively awkward, being outsped by base 100's and above. This would make it vulnerable to getting revenge killed by quite a large portion of the metagame, or at least get heavily damaged. The main problem with this arguments is that if you're not carrying Fire coverage, you won't actually be able to OHKO Genesect. This argument also doesn't take into account that actually getting these Pokémon in that can revenge kill it can't actually switch in at all, and you'll probably have to sack something (or at least get heavily damaged) before coming in. Shift Gear sets will also still be super threatening, as most of the revenge killing is thrown out of the window. Choice Scarf sets can also just keep clicking U-turn and chip away at the opponent, as the U-turns its throwing out can be super strong.All in all, I think Genesect's impact on the metagame is unhealthy and it will hurt the tier in the long run (if it's not already doing it right now, that is). I think getting rid of Genesect will be another right step into the direction of a healthy and fun to play metagame.