Again, I ask you: If you do not like his shows..why do you see them? Why have you seen him? I am curious.
Look, I'm not the biggest Sondheim fan ever. I find a lot of his works to be beautiful and enjoyable (and you don't, which is fine: we all have different opinions, which is great). I like Into the Woods, Follies (though I will say some parts of the book need work), Company, and Sweeney Todd. I find Sunday in the Park with George to be OK.
But, that's not the point. The point is, maybe, instead of constantly insulting people's tastes and opinions, you should embrace the difference. Instead of taking your opinion as "it is", why not say try to find optimism and instead of negativity.
What do you like? Besides Into the Woods, Company, Follies, etc., I also like a few other musicals...do you like the Sound of Music? My Fair Lady? What do you like? We could all focus on what we all like in common rather than repeatedly going to a thread that has "keyword:Sondheim" in it to call his musicals "pretentious bores".
Just a few thoughts...and please answer the question I asked at the beginning of this post. Thank You!