It’s not that simple.
I am a non-heredi Israeli, but I live next to a Heredi neighborhood. Yes a lot of Heredim are breaking the rules, but so are a lot of non-heredi. I have yet to see any proof that the heredim are breaking them at a much larger scale than the other non-heredi groups.
What is significant is that they live in much more densely populated areas with much larger families. Every infection is amplified by the number of people who come in contact with that infected person and this is likely what we are seeing with the heredi population. In the heredi community it is not unusual for 10+ people to live under the same roof.
It has absolutely ravaged their older populations with one study estimating that 1 in 73 of the heredim over the age of 65 have died from COVID. Unfortunately among some of their communities the anti-vaccine propaganda has been very effective, but this is something the government is actively working to counter.