All he said was he wasn't showing enough support for Israel and emboldened them. While that is obviously true, they also gave them hundreds of millions of dollars and didn't tell them to play ping pong. It comes right after Israel's military exercise announcement to retaliate, and so they're using the terrorists like they use BLM to get their way in America. They still have a massive level of infrastructure and commie personnel in Gaza and FGMer-occupied Judea and Samaria, and they weren't telling them to play nice under Trump either, but the illusion of power is terrifying to tribal barbarians and they were sitting scared. Now they are obviously telling them to riot to show Israel what America can do to her if she doesn't obey. It's ironic that they call the existence of Israel imperialism when the current riots are an example of democrat debt-and-bribe-funded imperialism.
The correct title should be that Trump blames Biden's lack of vocal support for Israel for the attacks. The reality is that this is an American proxy attack on Israel.