Sure, Homelander is bad. He has no qualms about using his powers for his own gain, often at the expense of others. His moral compass is completely off, and he shows no remorse for his actions.
In the comic, Homelander meets his end. The circumstances leading to it involve a series of intense conflicts and plot developments that shape the outcome.
Homelander does die in the Boys comic. It happens due to a combination of factors including his own actions and the opposition he faces from other characters.
In the comics, Homelander meets his end in a rather complex and dramatic way. It involves a series of battles and power struggles among various characters.
Billy doesn't kill Homelander in the comics. The interactions between them are more nuanced and don't end with Billy being the one to cause Homelander's death.