circling back...
1. altuve is the greatest astro of all time already. better than biggio and bagwell. yes, already. postseason homers > career war. but he'll get where he needs to with career war, unless helo is right and he's slowing down and about to fall off a cliff.
2. "would he make the hall of fame right now" is a ridiculous question rooted in confusion. if he retired at the end of this season, said it's been fun, but he wants to go build houses in venezuela, he would get elected to the hof, though there would be some drama because of the limited number of years removed from what is seen as a "tainted" season. straight performance-wise, he's in. guys with short careers don't have to hit big counting numbers, they just need to show their excellence during their career, which jose has already done. reference the postseason homers again. kirby puckett is a good recent comp here. koufax is an older one, but he was one of the best to ever do it.
*now if the question is "are his numbers good enough right now to get him in during a full career where he plays until he's 38-40 years old?" well that's a different question not based in reality. sure, if he plays another 6-7 seasons and hits .210 every year with 6 bombs and 33 rbi and becomes an anchor on the team, yeah, he's probably not a hall-of-famer. but that's not what the question is. when people say, "has he already done enough and is he a hall-of-famer", the presumption is that he'll continue his pace with the usual human decline, and retire when great players retire. if that's what happens, he's a hall-of-famer. and the greatest astro of all time.
he's the leader of the unquestioned golden-age astros dynasty. come on, people. do better.