1. The Iranian government is genuinely terrible. It’s not an enemy if my enemy situation. It’s more like everyone is shit here type of deal.
2. The Iranian government executes people both through the death penalty handed down by courts as well as extra judicially (see eg Mahsa Jina Amini). This is especially true for political activists.
3. Not everything is about Israel.

mostly becuse in most places, nuclear does not recieve subsidies.

This is just not true. Nuclear plants receive subsidies in the US and most European countries. The big exception being Germany, where the current government tried to reenter nuclear energy production, but they could find any private sector partners that wanted to build new plants without significant subsidies.

Subsidies for nuclear plants are usually payed out during construction and decommission of plants, but that’s still subsidies.