Tourists are not culture. They’re a zombie plague.
I promise you, if you move there, learn Spanish and start working for a local company, you’ll learn that people there are extremely welcoming to foreigners.
But if all you want is an Instagram shot in the same spot as the other 16 million people who visited just this year a city of 1.6m, and an “authentic” paella (you won’t get an authentic one, trust me, but you’ll be told it is and you’ll keep bragging about it to your colleagues once you return from your vacay, even though the thing you tried tastes nothing like what a paella should taste, digression end), then you bring a negative cultural value. You’re an annoyance, and a one that’s not worth whatever financial benefit it brings.
One could also argue that most of your financial contribution goes to making hotels and landlords richer, and nobody really needs that.
So, I’m with people of Barcelona who paint “fuck you tourists” on their walls.
You use the word fascism in a way that it appears you need to look up it’s meaning in the dictionary.