because it's not proven, to even be possible. Not without being caught.... 2020 was a very very contentious election....it pulled near everyone out to vote, even the infrequent passive voters.... and EVERYONE was predicting such, a huge turnout, long before election day...
there is no way that such a scheme would not be exposed near immediately, with people trying to cast their vote, only to find someone sent in a a fraudulent absentee ballot in their name.
All the election office would need to do to track who did it, is get the address the thief had the ballot mailed to, and trace it from there if needed.
you are talking 11,780 votes that would be needed in fraudulent absentee ballots in order for Trump to beat Biden in Georgia,
and then you would need three additional states out of the swing states to be reversed to Trump, in order for Trump to win the electoral college vote that he lost to biden.
and a non profit would not set up such an operation in plain view at their headquarters....
if they ever turned crooked and contemplated it....it would be undercover, like the Republican operative who committed absentee voter fraud thru harvesters in North Carolina.