I can smash on a keyboard and then write a citation to whatever nonsense comes. An intelligent person cross-references it with well established facts, and then decides if it’s probably true.
The idea that US support for Israel started in the 80s is refuted by hundreds of data points in Israeli history.
“It’s rude and uncalled for”
It’s totally called for. You could literally have read the Wikipedia on history of modern Israel and seen that it was patently false.