But it doesn't really do what it originally meant to do anymore.
Bitcoin was created to be an alternative payment system that is decentralized and censorship resistant. It is exactly those things.
Most people who invest in Bitcoin plan to keep it for a long time, like around 80%, according to statistics. The current idea that seems like a sure thing is to buy small amounts over time and hold onto it.
If people use this forum to spam does that mean bitcointalk is no longer doing what it was meant to do? lol
Remember when Bitcoin was supposed to be used for sending money directly to each other?
Bitcoin was supposed to be decentralized and transactions are sent from one peer to another (not directly to people) and it is still doing that.
I know there are ways to make it faster and cheaper, but there are newer and better choices now.
Name one

Plus, the price needs to be steadier to work as money you can use every day.
Nobody promised to create a stablecoin when bitcoin was introduced.
Also, the price is going up mainly because people think it will.
Wrong. It always comes down to supply and demand with supply being fixed and demand increasing with increasing adoption. What people do in the market is affecting short term fluctuations.
And saying other coins should be worth as much as Bitcoin is crazy. Some of those new coins are already being used and have real value.
Name one with their real world use cases

Bitcoin will continue to go up and people will either begin to use it as it was intended again or is it possible for it to become obsolete.
Increasing number of people have been using bitcoin for what was meant to from day one to today...