Israel has very limited options to respond to Yemen. Ansarallah possesses a variant of the advanced Iranian Third Khordad SAM system as well as long-range Iranian anti-ship cruise missiles. They are simply too far away for Israel to do any meaningful damage to them (indeed, the Saudis in 8 years of brutal war against Yemen could not degrade Ansarallah's military capabilities from next door let alone 1700km away).
Also, Ansarallah operates with local autonomy and does not simply take instructions from Iran (indeed, Iran warned Ansarallah not to move into Sana'a but these warnings were ignored). Kindly do some more research into the dynamics of these relationships before spreading misinformation.