what if you send the bitcoin to a legacy wallet non wetsig/lightning will you loose the bitcoin or can the transaction be cancled
Do you mean to open a channel and fund it from a legacy address? Well, this is not possible.
You can try it yourself. If you have a legacy wallet on Electrum and try to open a lightning channel you will get this error message:
Not available for this wallet.
Lightning is currently restricted to HD wallets with p2wpkh addresses.