Bitcoin and dollars are not comparable. The US government forces you to use dollars under threat of violence. To exist as a legal entity in society you must use dollars, to pay fees, taxes, etc. And if you depend on the government, you must accept dollars.

No one needs to use bitcoin. Its demand is chiefly speculation. It has very little use other than a speculative vehicle.

I think you describe quite well the fundamental reasons bitcoin was created.

Everything created by people was created for a reason. Having a reason for existing doesn't mean anything.

I disagree 100%. Having a reason for existing is, literally, it's meaning.

Something may become meaningless over time if the landscape changes to undermine the reasons for existence, but that underscores the point that 'reason for existence' is another way of saying 'it means something'.

Bitcoin's reason for existence was the bank bailouts of 2008. It has found supplemental reason in the current economic climate of quantitative easing. That means everything.

"Having a reason for existing doesn't mean anything" is an absurd statement.

You're not making a point or advancing an argument. You're just describing what you think are the reasons for Bitcoin's creation and interest.