
And now I want to kill someone.
First: There is no single Spanish-speaking culture. Spanish is one of the most spoken languages in the world and has a huge cultural spread, with countries where it is or was an official language in Asia, Africa, Europe and the Americas. Thinking we are all the same just because we have a common language is kinda racist.
Second: How exactly do you propose to further the cause of mutual understanding between cultures if you demand people not have languages in common?
Third: Who the fuck are you to speak for people of Hispanic heritage as to whether or not we mind other people learning Spanish? I think it's great, and there should be more of it. Stop appropriating my cultural right to decide who is or isn't appropriating my culture.