EDIT: Just realized you said Adblock Plus, a different product. Yet another coordinated hit.

For AdGuard: Go into preferences/filters, then select the base filter. Do a search for gatewaypundit. Unselect (disable) the one that starts with /^https?.

Ideally, all of us need to move on to a product that doesn't openly hate us. u/djmarcone had some suggestions up above. Pi-hole will be a little advanced for some, but u-block is just a browser plugin.