Is it wrong?

I'm not asking about real life.
What I'm asking is,
Is it okay for mc to beat/kill people in a novel?Which i'm expecting to happen in a NOVEL.
Sorry for the bad English. 

Its unrealistic.
Spoilerbasically why i hate CN. Too much crap. Trashy authors day dreaming about how theyre top of the world but theyre just basically no better than a JP salaryman. 

That's almost every single xianxia novel. Usually, this type of MC isn't very intelligent so it'll be easy to find any novel that fits the description. It's wrong to expect all authors to be stupid enough to write these basic tier novels, so yes it is very wrong. 

You're just going to stress yourself more with cops if you kill people. (legal standpoint)
You're wrong in murdering people. (religious standpoint)
You're reading too much cultivation novels with a lack of insight that you're not the MC. (my standpoint) 

Trust me it's worth the effort! 

There is honestly so much of that in the novels these days. Harassing I get, but it gets so overboard 

You can expect beating him out of crap but it wont enough to kill him

BTW, one will never get enough of Cultivation novel but do so when comes to brainless arrogant  silkpants young master

Just like JP isekai... though you should not expect much when it comes to WN isekai (or originally WN)...

and you cant exclude KR too.... KR likes leveling but when they become TOO OP for their own good, you can expect those MC asking/getting a lot of money for their service (F***ing hell 8 out 10 it end up like this)