Bitcoin is a decentralized digital currency for privacy and freedom but politicians are leveraging on it's adoption and popularity to use it's influence for political gains. Remember that during the last US presidential campaigns Trump, became Bitcoin friendly to get the massive votes of Bitcoin enthusiasts. Elon Musk, can do the same thing with Bitcoin to gain popularity for his party because a lot of young people are crypto oriented.
Bitcoin can just be a means to an end for this politicians, their public affiliation to it might just be majorly for political purposes. Bitcoin don't need to be in politics or have politicians singing it's praise for it to keep reaching ATH. Satoshi had already put all the mechanisms in place for it to be the number one currency and asset in the world.
How can it become legal tender without government approval? Do you think Bitcoin can become legal currency in El Salvador if Nayib Bukele doesn't agree?
How could it become the world's number one asset without trillions of dollars flowing into the market, without it becoming globally popular? Do you think we would have hundreds of billions of dollars flowing into the market without ETFs? Can we have bitcoin reserves without them? We need to admit that bitcoin would not have been able to achieve these things without the support of politicians/governments.
It would not be wrong to say that politicians are using it as a tool to achieve their political goals but at the same time bitcoin is also benefiting from it.