It’s political because a number of hugely important issues call us all to action (child poverty, climate change, homelessness) and those issues are and will continue to put vulnerable people in danger of death and suffering. Staying in your comfort zone is likely an expression of indifference to them as vanishingly few people are comfortable when tackling these problems.

You might adopt a political position that your privileged position of safety and comfort is not subject to any particular obligations to engage with others and become involved in society’s problems, but that would be politics all the same.

So who gets to decide which issues to get involved in? Does everyone have to get involved in every issue?

No, they don't have to get involved in every issue, the point is merely that inaction, or excluding yourself from politics, is itself political.

That doesn't make inaction immoral. It just means that it's not apolitical.

I actually agree with you. My comment was provocative in the sense that I would surely immediately become engaged politically if I was out of this comfort zone.

It seems my comment was more provocative :)

Or were we both heavily downvoted?