The people profiting from the situation aren't the people dealing with the side effects, it really isn't that hard to understand... if you own a club or a building it's a gold mine. If you're just an average citizen everything is now more expensive, it's harder to find a place, you have to deal with rude people every fucking day, &c.

Since Spain is in Schengen they won't be able to easily block tourists getting visas. Plus the visa waiver programs are usually reciprocal.

Best way to reduce tourism is to levy taxes on tourist activities.

“just” is doing a lot of heavy lifting here.

Whenever you use the phrase "why don't you just", you're almost certainly about to say something utterly dumb and poorly thought out.

Stop and think a bit more instead.