That's a good point actually. Why listen to me when I have no authority on the subject.
I'll let them tell it:
3 – What is the ruling on the apostate?
If a Muslim apostatizes and meets the conditions of apostasy – i.e., he is of sound mind, an adult and does that of his own free will – then his blood may be shed with impunity. He is to be executed by the Muslim ruler or by his deputy – such as the qaadi or judge, and he is not to not be washed (after death, in preparation for burial), the funeral prayer is not to be offered for him and he is not to be buried with the Muslims.
The evidence that the apostate is to be executed is the words of the Prophet (peace and blessings of Allaah be upon him): “Whoever changes his religion, execute him.” (Narrated by al-Bukhaari, 2794). What is meant by religion here is Islam (i.e., whoever changes from Islam to another religion).
https://islamqa.info/en/20327
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Contrary to liberal fantasies, such thinking isn't limited to an obscure branch of Islam. It's a minority within global Islam but it's not an insignificant minority.
What gets referred to as radical Islamic propaganda is considered Islam by millions of Muslims. If you care to get educated on what they think, take a minute to read it.
Maybe you won't look so silly in the future.