The Israeli Minister of Diaspora endoresed the anti-semetic National Rally candidate in the recent French election.
Israeli Prime Minister Netenyahu has been aligning with the anti-semetic Trump in the US elections.
There has always been a significant amount of anti-semetism in the Zionist coalition. Hitler's "final solution" was his solution to the "Jewish question", which had been explicitly talked about in Europe since at least the mid 1700s, but was popularized in 1843 with the publication of Bruno Bauer's book "The Jewish Question".
Before Nazi Germany came up with it's final solution, they considered a more modest proposal of resettling their Jewish population outside of Germany, including some support for Zionist movement. Their only major opposition to Zionism was a concern that it would destabilize the region. Otherwise, it would get Jews out of Germany, thus solving their Jewish Question. Ultimately, Nazi Germany settled on a much less well structured approach of "voluntary emigration" by making life intolerable for their Jewish population, before finally settling on their final solution.
Once Israel was established, her anti-semetic neighbors seized on the opportunity to resolve their Jewish question by finally forcing out their Jewish population (who now had somewhere to go).
And what happens after you kill the Houthi leadership? Do all of the Houthi forces turn over their weapons and go home? Get taken over by a more radical leadership? Split up into a bunch of cells with no centralized leadership?
The Houthis are not a force for good on the region. However, compared with other terrorist groups, they are relatively rational and constrained. If even half of their forces want to go more extreme, they will have a proximate reason to do so, and no leadership to stop them.
The likely result is the Gaza war expands into having a full war on the Yemen front (which is, admittadly, on track to happen anyway), against an enemy that no longer has the capacity to negotiate or surrender.
As a fun side note, a bunch of those cells are also going to be freshly angry at the US, which is very much not in her interest.
We've tried killing terrorist leadership before. It tends to not end well.