As the post is important, it can not be so big.
It is better not to enter today's Etherwallet without much fanfare.
However, if you need to, if there are some reductions, after all the cuts, then cut all and then enter.
I'm pretty sure the etherwallet has been hacked.
I think the information you have giving us about Etherwallet hack might not be totally correct because i just checked through my ECR20 wallets but could not find any hack issue, however you might have entered the wrong etherwallet gate way