There's depth in the Christian community (as there's always been, of course). I think you're right that a fundamental driver of conversion is people looking for a home, but a running problem for the church today, and especially for many of the more evangelical varieties, is the tail wagging the dog, so to speak - the parishioners pushing the priests, as opposed to the priest guiding the parish. There are churches who provide welcome homes for people and who build their communities towards love and support of their fellow people, but there are also plenty churches who see themselves as the armies of the culture war, and whose members indeed joined because that appealed to them.

Incidentally, re: "modern spirituality feels hollow" - there was a good article in the Atlantic* recently arguing that the fundamental problem for the modern church isn't that it asks too much of its members, but that it asks too little - that by not requiring its members to actually demonstrate their beliefs, it robs those beliefs of any tangibility and makes the whole exercise hollow.

I'm not a Christian, but I do think there was something lost in the country when we discarded the church as a common moral frame - the only other shared philosophical framework we have is the market, and whatever the limits of the church, the morals of the market seem to be making for a much colder society.

* https://www.theatlantic.com/ideas/archive/2023/07/christian-...