In a way I agree with your concerns but I'd say that the main issue is with some evolutionary aspect of the language. My guess is that we see it happening in Br

In a way I agree with your concerns but I'd say that the main issue is with some evolutionary aspect of the language. My guess is that we see it happening in Brazil more due to sheer population size. Looking at your examples: - Brazilians borrows words from other languages a lot more easily than the Portuguese, especially when the foreign word is shorter. No wonder "time" gets more usage than "equipe". - "tu" is going to become extinct in Brazil within the next generation or two. People only use first- or third-person conjugation anyway. "Você" is going to be used for making the distinction between the actual subject of the sentence, and coloquially people just say "cê", which is just as short as "tu", so I don't see it surviving for long. - Disagree on "Mas/mais". Yes, it is true that a lot of people make this mistake or (worse) don't even know the distinction, but this type of error is equivalent to English "they're/their/there": there is no redundancy or efficiency, so I don't see why the language would change here. - "dou-lhe", "lhe dou": also going to be extinct due to the redundancy with propositions. You (and I) may not like the "caveman language", but it's undeniably more efficient to just throw verb + proposition + person than to deal with different pronouns.