I think people cared that Biden did it, but what are we to do? Pissing and moaning about it just strengthened the anti Biden/Harris crowd and created a strawman for the opposition to use. The criticism was and is warranted, but I think saying no one cared is disingenuous. I think it's arguably one of the biggest reasons Trump is president today.
That is unfair to claim they don't give a shit about genocide. Most of our representatives care deeply and are doing everything within the powers of the legislative branch...