"The memes are unfunny" Ignore them. What's stopping you from ignoring it and move on with your life?
"The community consists of people who ship bf and pico" Acting like there are no other ships.
"They attack anyone who criticizes the game" Sort of true, I get shat on for not liking a certain mod, but I have never seen more of this.
"Almost all of the songs become easy" Other than the examples of the songs that become hard on, well, hard, mods exist that can make the game batshit hard, even on easy
"The soundtrack, while nice to listen to the first time, gets VERY repetitive and annoying at some point and it doesn't help that the lyrics only consist of "beep boop bop beep"" There's fnf with lyrics, which imagines what would it be like if it had lyrics, and some have voice acting, but that's a whole new can of worms.
"The gameplay is unoriginal, given the fact that it was ripped from Dance Dance Revolution. The only change they made was that the notes were displayed) Didn't they say that it was inspired by DDR? With that logic, OSU mania is a DDR clone because all you do is hit notes like DDR and the only change was the notes. You can say the same about other rhythm games where you hit four keys, and it would make no sense either way.
"Some of the game's characters, such as Pico, were ripped from other franchises with zero f**ks given, and the characters that WEREN'T ripped from other franchises (for example: Boyfriend and Girlfriend) are boring and one-dimensional"
Pico is from fnf!!!!!!!! >:( All jokes aside, While it was stolen(I think), I think it helped considering it got more fame. And the same could be said for other franchises in FNF. Other than that, I can see where you're coming from with bf and gf.
"The mods aren't any better either, and most of them share most of the same issues the actual game has. They are also mostly the same: your opponent wears a hoodie, they get angry on the second song, and go batshit insane on the third song." Again, sorta. That trope of:"character goes postal in the 3rd song" is dissolved and there is more diversity when it comes to stories. But again, I see where you're coming from. I'm not hating you for your opinion, but jesus christ, it's flawed and aged like milk