Ok, I'ma spell it out for ya.
1) "fatphobia" is pretty much a made-up concept and a political combat term. Ignoring the dubious word choice (nobody is scared of fat people) Making fun of something is not bigotry. Most things leftist label "fatphobia" is are either health concerns, jokes or dumb insults. The closest thing to bigotry that happens somewhat regularly is people look down on down on fat people for lack of self-discipline or similar things(inb4 rare medical conditions: exceptions don't disprove the rule) calling that bigotry is still quite a stretch though.
2) Being slender is not being anorexic.
3) Beauty standard are not constructed. They somewhat differ from culture to culture and are generally are proxies for health, status and wealth. Them being partially defined by society is a good thing. The idea that they are "socially constructed" is often used to delegitimize them and to relive pressure to lose weight. Weather or not this goal is a good thing or not is another can of worms, but the claim that beauty standards are "constructed" rather than socially evolved is plain wrong either way.
4) Disabilities are not sexy and not a good or beautiful thing. "ablesim" is a combat term used to bully people to include("represent") disabled people in their works of art. The demand to have disabled girls in a porn game is a particularly vulgar example of this since the girls must be sexy and being disabled is not sexy.
5) Criticizing a piece of media because (some of) the characters have the wrong skin color is a typical example of racism. If the artists envisions them to be white/black/whatever(for whatever reason) so be it. Unless there's some actual reason for them to have a different skin color(historical figures should be their actual race in most cases, for example), complaining about the race of the characters is racism.
6) The whole thing with objectification, cheating and text choices to make them fall in love is quite literally the point of harem VNs, so if that's "problematic" you're arguing against this kind of game in general. I'm not gonna discuss the validity of this since you said you liked this game and you're here in the first place so you don't seem to actually have a problem with this, also this is kind of a tired debate, this line of reasoning has been discussed to death in the killer-games debate already.
7) "Only a privileged, heteronormative, sexist, racist, while looser could have made such a game." is a cheap insult with leftist-buzzwords, I'ma assume you don't actually think I'm literally just making valid criticisms and meant to use the word "literally" as a generic amplifier instead of meaning literally literally.
What you describe as "the right mindset" is being a hypersensitive leftist with victim-mentality. I do see the point. In fact, I'm seeing beyond it.
See how productive it is to imply that someone is not in the "right" mindset or is not seeing "the point" is? ;)