That's not even an idea to consider. Pcsx2 is really the only option, even then there is no official or unofficial port to arm chipsets except for the paid dameon ps2 emulator on android that was built with stolen pcsx2 code. If they would release the source code, a proof of concept emulator could be built for the switch but would have low frame rates. Look at Play! on android, very low frame rates. With time & lots of optimization, ps2 emulation on the switch could be possible with playable frame rates, on less demanding games.The only way I could see this working, is if people find a way to port the ps2 classics emulator on ps4 to switch. Since I believe switch and ps4 use a lot of the same libraries