A similar attack actually took place on Monero in August of 2025. A mining pool called qubic decided to create their own cryptocurrency and mine Monero and then sell that Monero for Tether and buy their own coin back. This incentivized Monero miners to mine with them because they could get more in rewards than the Monero network itself was giving them. The attacking pool was able to gain between 33 and 35% of the network hashrate, but the other 66% would not join because it was against the Monero network's interest. That 66% believe in Monero enough that they did not want to see Monero fail.
The Monero network has two-minute blocks, and the attacking pool managed to do an 18-block reorganization, or 36 minutes worth of blocks. This did cause the Monero price to drop somewhat, but the network handled it by just people organically asking for longer confirmations while the network was under attack. Most people on the Monero network consider a transaction to be finalized after 10 blocks or 20 minutes, and since the attacker was able to cause an 18 block reorganization, people started asking for around 30 blocks worth of confirmations.
In the end, the attack failed because the attacking pool realized that people still wanted to use the network even if it was under a denial of service attack and just asked for longer confirmations that they could not sustain the hashrate to undo.