This is just a heads-up. The New York Times is currently running an interview with Barcelona's new "commissioner for sustainable tourism" (not sure if that is the official title), Jose Antonio Donaire, about tourism in Barcelona and the city's measures to limit tourism growth in the city. I did not include a link because there is a paywall to read the interview (if you subscribe, you can readily find it). The issues raised have been debated on this forum many times.
Barcelona has the right to do what it wants to limit tourism and to decide what for the city is the right level of tourists and tourist dollars. I personally think the locals there and elsewhere are placing too much blame on tourism for social problems. I also will note that the commissioner was given a chance to be critical of the locals shooting tourists with water guns and punted, simply saying he wanted all visitors to feel welcomed.