No, it’s completely different.
In most eastern bloc countries, communism is often associated with external oppression.
In Spain, fascism was a local phenomenon and the current democracy comes from a voluntary transition from fascism, so there has never been a purge of fascism in Spain.
Even today there are lots of pro-fascists in major political parties, and there is a not small amount of nostalgia.
I would say, generally, the feeling in Spain about fascism is comparable to the feeling in Russia about the USSR.
Obviously there is also a strong anti fascist movement, but in lots of big cities it’s not strange to see fascist flags on some people’s balconies.

Absolutely not, of course it is about having fun.
Are you going to just experience something that makes you feel miserable? Not an unfun moment for catharsis later, but an entire make-you-feel-awful experience?
Getting lost in a fantasy world is about having fun.