I was talking about people “at one point” believed the Earth was flat, not that they did around Columbus’ time. And even that was just to make the point that popularity does not equate to truth.
It’s not a good analogy and it’s a mistaken application of the charge of an argument from popularity.
The point I made was not that God exists because many people believe it. It was, that many people believe it, therefore some kind of explanation is needed for that fact (and none is given).
In the case of a flat earth – the explanation is easy. Some (not “all” as you falsely claimed) thought it looked flat and therefore was. This was disproven later so the opinions changed.
In the case of belief in God, billions today believe it. Many of them are more intelligent and more academically accomplished than you are. Many of the greatest minds in human history have believed it.
Atheists simply dismiss those facts. Often, no explanation is given for why these facts are true. In other cases, a very lame explanation is given: “they’re all deceived or lying”.
In any case, some positive assertion is required of atheists on this matter.
To say that there is “no evidence” for God’s existence is an obvious expression of faith. It says, “I have faith that I’ve looked at all the possible evidence and I have interpreted it correctly. I conclude, by faith, that my knowledge is sufficient to say that God does not exist.”
So, no, the question of God and the meaning of life is not something that can be ignored like stamp-collecting. A person who does not take the claims and teachings of Catholic theology seriously enough to sincerely investigate and explore them is in danger of taking a very superficial view of life itself.