What makes gold valuable? For the most part because its rare and doesnt tarnish.

You are missing a few pieces of its value. Gold has been used for adornment for countless millennia because it is beautiful. It being easily malleable or it's thermal or electric properties may provide more recent uses (though it is debatable that it wasn't used for those purposes in the distant past), but it just being used for jewelry can't be downplayed, and everyone who suggests "gold has no intrinsic value" is straight up lying by ignoring that fact. Some of the most ancient artifacts found are gold jewelry. That isn't just because it was rare, but because it had use (value). It has, and was always appreciated for, it's intrinsic beauty (color, lustre, sheen, reflectivity, weight, etc.).

Beauty is a non-trivial quality. A daughter that is beautiful, for example, fetches a much higher value when uniting houses (or kingdoms) than one that is ugly. Far from being "meaningless," beauty is one of humanities most important sought after qualities, and gold has it more than any other metal (by some people's measure, though not by mine).

Regardless, you just named, and thus admitted that gold has intrinsic value. The case I am making is that without that intrinsic value, a currency (intermediary of exchange for barter) must fail. Gold would be a commodity (and indeed it is) without it's use as a currency. Bitcoin, without it's use as a currency, has no use whatsoever.

It is valuable because it is rare

As shown with gold, "rarity" is insufficient to provide value. It must have intrinsic value. If something has only extrinsic value (value added from the outside) it will cease to have value as soon as it can be replaced with something that has intrinsic value.

and because people have started to agree that it is. It is a more perfect form of money.

And once people stop agreeing it has value, when something comes along with intrinsic value to replace it, it will cease to have any value at all. You are making my case for me.

Read the bitcoin white paper get educated.

I have. Why do people assume that because arguments are made against Bitcoin, that means people don't understand it. I understand it perfectly BECAUSE I have studied the issue. We are making the same case, except I am showing you the flaws in believing your stated advantages are sufficient. They are insufficient because the moment something that fulfills the same advantages as bitcoin comes along that also has intrinsic value, it will be tossed aside like the red-headed stepchild that it is.