Non Mining Node Vs Mining

BitcoinBitcoin
$24,530.49
2.25%
self.Bitcoin1m ago
Hi! I just spent around $300 on a non mining umbrel node. I liked the idea of being able to broadcast my own transaction and to help decentralize the network. Recently, I’ve encountered people saying that non mining nodes are useless and even a hindrance to the network. Even the recent pentagon report said miners are all that matters. I’ve seen a few arguments that non mining are important too like in the case with segwit2x. Which is it? Thanks!