Look at this video (I time stamped) https://youtu.be/J5ytp2dq7-M?t=222
They have many videos like that, this part is even worse, They put a camera on a real life crab. then use the REAL crab to corner the hamster and push and pull the crab to scare the hamster. https://youtu.be/J5ytp2dq7-M?t=232
Everything this channel does is 100% abuse and I have no idea how a person who is into real hamster care would think this is okay or defend it at all. that is crazy to me! Hamsters are not toys and not to be played with. and you should never mix a hamster and any other animal together for any reason!
Purposely doing anything like that is cruel and abuse 100% no ifs ands or butts.
to OP:
I came across this hamster channel last year and saw this stuff and hated it, Sadly there is nothing you can do other then report it to youtube but youtube does not seem to care. There is this other channel where a lady plays with and eats live seafood. Like she will eat live jellyfish and squid, she will soak live stuff in sauces and hit them and do very bad things to live fish then eat them live and youtube does not care either. its all very cruel.
A petition will probably do nothing as a petition is not a legal document and no matter how many people sign it there is no law or person who can stop it other then youtube or the person making the videos
Sure the petition might get youtube to notice it but youtube doesn't seem to shut down channels unless there is lawsuits or legal action against that channel then youtube will delete it. Like there was a channel that posted videos of them killing cats and youtube never deleted it but they were reported for like 5 years, Then one day people online found who the channel owner was and they got arrested, only after they got arrested did youtube delete the channel.