Do you equate havin a game on itch with distributing it to that place ?
Of course there are severl good reasons to boycot each and everything possible related to them. They are closed, you can not become acitizen. Not even by marriage. They have substandard environment protection and undercut world market prices with knockoffs, monopolizing where they can . It is not a free country, where you can speak your mind, get indipendent information - or play any game you want. Putting money there by purchasing stuff made there supports all those things. Including the censorhship.
They banned Winnie the pooh, exposing their unfittness for global community. Lets hope the young people there grow up as decent , making the country decent as well. (and that goes for many countries, even the us. especially the us.)
If i were you, i would be more worried that you get picketed by westboro baptist church for desecrating christian imagery by putting it in some ungodly computer game. Because, you know, usually you do offend some christians by having christian "references" in games. Not people that are indifferent or even against the source material.