Edit: Ok, is impossible to have a conversation when secessionists are downvoting every comment. Fine. I prefer to post arguments, and sources.
http://www.aljazeera.com/programmes/talktojazeera/2017/04/ba...
http://www.telegraph.co.uk/news/worldnews/europe/spain/11643...
https://www.theguardian.com/world/2017/aug/01/barcelona-anti...
Barcelona's major wants to make tourism more manageable because it is considered that too many tourists kill the spirit of the city, increase rent for the citizens too much and, depending on their upbringing, bring fights and low quality tourism to the city.
There's also a civil movement against tourism, specially AirBnB, that has made some actions.
But that movement is separate from the independence movement. There are people of all factions in that movement, and it's quite smaller than the independence one.
The partly is that, at least on the other times this topic has come to hacker news, the brigading was from unionists.