There's legitimacy to being concerned on foreign ownership of land. After all, foreigners can't own land in Mexico because the last time Mexico allowed Steve Austin to have some, his settlers refuse to assimilate to Mexican law and give up their slaves, resulting in Texan seceding and subsequent Mexican American war and loss of half its territory.
The hypocrisy here is, we know who's been courting foreign land buyers, and it ain't progs running soup kitchens. So these assholes bring in foreign money and then do a 180, scapegoat, and pass laws to seize said land. It's double stealing basically.
Now, are they going after Saudi owned assets? Qatari?
I could see tweaking of the constitution that bars foreigners from countries that fail to conform to American norms of democracy and freedoms offered if we're so concerned w/nat. sec. Tweaking the visa provisions might be a much easier lift though.
