why nodes are not truly in charge of the network
your node is economically insignificant and your hashrate is a rounding error. it doesn't do anything. the toy SHA256 ASIC you purchased is a scam. if nodes like yours actually had any influence over what the rules are, bitcoin would be vulnerable to sybil attacks, and it isn't.
"the block wars" refers to UASF, which was a stupid idea sold to the public as a way for users to have more control over the network. the narrative was backpeadled to "economically significant nodes" i.e. nodes operated by financial institutions. exchanges were supposed to reject blocks which didn't follow their desired set of consensus rules. if UASF really works at all, it enables exchanges to dictate the consensus simply because they handle most of the coins.
fortunately UASF doesn't work. it was an empty threat and it literally never happened. segwit was activated the normal way after reaching 95% miner signaling. no soft forks have ever been activated by the UASF mechanism. UASF was pretend proof of stake larping as a pretend sybil attack. if you really like a network where miners aren't in control, I have some alts to sell you.