I never learned Latin so this Mass would likely hold little appeal for me. I don’t think the Church should say all Masses in Latin because in 2019 most are like me. But I know many who do attend and enjoy the Latin Mass. They aren’t bothering anybody, so I really fail to see why this fellow has his knickers in a twist.
He's a leftist, and therefore a totalitarian tyrant. As such, he cannot tolerate any form of dissent.
About 35 years ago, a priest who’d been ordained around 1940 told me that in the ‘60s he had been 100% in favor of dropping Latin in favor of the vernacular. He said that his thinking was that Latin was a barrier and a lot of protestant Americans who might otherwise switch to Catholicism were put off by the use of a foreign language. Just as the Western Church had (mostly) switched from Greek to Latin in the 5th century and subsequently flourished, the same playbook could be used in the 20th century. Twenty years later, though, he said that he decided that he’d been wrong. He said that over the course of 1500 years Latin had become a source of Catholic identity and unity like Hebrew is for Jews. Ditching Latin overnight was mistake, in his opinion.
With that said, it is hard to put the genie back in the bottle. I get the resistance to going back, as people say, “I don’t know Latin. It wouldn’t mean anything to me.” And I understand why people reflexively react that way. But, remember, it was just fine for their non-Latin-speaking ancestors for the last thousand years or so. And it’s actually pretty easy to follow along with a Latin-English missal. And the Church managed to convert non-Latin-speaking people around the world from 500-1965 with little difficulty.
The parts that are in Latin are not addressing you, they are addressing God. He knows Latin. You are well able to read, the Latin and English are printed right next to each other to help you pray along. You are an intelligent individual, you might enjoy the reverence and masculinity of the Old Rite.