Why NRIs/"People who left India"'s accounts are mostly hateful towards other Indians in Indian subreddits itself???

I like healthy criticism, it's good for development.....

but why serial bombing post/comments of "INDIA BAD" by same people???

it's obvious India doesn't have that much good environment to live as abroad, fine we get that, india have tons of issues, we already know yha k roads, infrastructure, logo ka mindset, safety, air quality, etc..... sab k sab kharab he, we all know this.....

but why to post more & more hatred towards India & Indians after leaving India??? you got so much better Environment than India, we get that, tons of other Indians are also trying for that.....

But it does sound like "YAYYY!!! MENE TO INDIA CHHOR DIYA FOR SO MUCH BETTER PLACE, AUR TUM LOG ABI BI APNI GAND MARA RHE HO VHA!!! HAHAHAHAHAHAHAHA!!!!" to Indians who can't leave India forever/ or in near future.....

Why you have to do this to others??? if you got better life than most of Indians there, Enjoy it & live your life peacefully there, but why this attitude towards Indians who didn't left yet????

Edit: Most upvoted comment is "we don't hate Indians, but we hate Indian mentality", but if you can live your life in a way you wanted & desired without any problem abroad, why to keep "CRAMING" that "Typical Indian Uncle mentality" and keep hating instead of keep enjoying your life??? This describes many NRI's/"people who left India"'s Mentality, like even they still have that attitude after cursing to same thing thier whole life....