Dems won't secure the border until their ability to hold seats in Congress is under threat.
I'd prefer there'd be no illegal immigrants because we have an immigration system that works, BUT ...
... Dems and some Globalist Republicans want an open border.
Limousine Liberal Dems are NIMBY's (Not In My Backyard). So, if you want them to change their position on Border Security, or if you want them to loose their seats in Congress, the pain must be spread to THEIR backyards.