Depends. Blacks need to be both increase their percent share of the vote
and they need to be near Obama level 98% to 2% for Biden. Texas... that needs to swing very heavy for Biden among Hispanics, but I'd say there is more room for such a swing, compared to Georgia where we are talking 85 to 10 verses 98 to 2... Hispanics are more like 2 to 1ish, which provides more room for more votes towards Biden. Turnout in Texas is incredible, already about 85% of 2016, as of yesterday.
Simply look at Exit Polling in 2016 and 2018 with Clinton and Abrams. That tells you how hard it'll be in Georgia. A 2 pt lead with Biden below 50 means nothing to me. That is well within the margin of error and Georgia has shown purplish poll numbers before, but almost always goes red. Texas, not the same thing, as I think we might be seeing Trump's politics biting him in the ass (or not... and it is a red wave), there are definitely song tea leaves that point to an insane and improbable Biden win.
Biden has a fairly healthy lead in Michigan too. I'm still far more worried about the attempts by the Repugs to throw out ballots, or insist that electors in red states vote for Trump, regardless of who actually won the popular vote. In other words, it's the Republicans who are trying to rig the election, not the Democrats. Hopefully, I'm being overly anxious about this, but our system is insane and we've never had a president as corrupt as Trump.
Exactly! Will the vote matter? If Biden wins in Florida and Ohio on election night... is that it? Do the lawyers start suing this week? On election day? Day after? Winning Texas would be nice because of all the in-person voting. It'd be convenient. Of course, the Trump Admin would say the loss of Texas is proof of a scandal, "of the likes we've never seen before".