Resistance to Monero comes from two fronts:

Bitcoin maxis who were sold on the idea that Bitcoin will absorb the market cap of all other crypto currencies, and thus Moneros superiority as medium of exchange poses a major threat as medium of exchange is the core value proposition of Bitcoin.

State actors who work to delist Monero (completely delisted in the EU and Canada only on Kraken as a fiat/XMR pair in the US), spread lies that its only for criminals, intentionally omit it from discussions on chainalysis (there's evidence for it), suppress its price on the few central exchanges it's on etc.

Yeah it is kinda too good to be true, but it's mathematically true. Each transaction has strong network privacy via Dandelion++ (Obfuscates which nodes IP the transaction came from), strong privacy in the amount of the transaction via RingCT (amounts can only be decrypted by sender and recieved), reciever privacy via silent addresses (each address is detached from the UTXO creating no link on reception) and finally sender privacy via ring signatures (basically a 16 UTXO coin join in each transaction)

Just as Bitcoin seemed too good to be true in the early days, Monero has taken the mantle in being the most dangerous tool for personal freedom to those who wish to sieze it from us.