Can or Will the immigration officials deport or ban someone from the United States if they revoke their green card just because they have abandoned their residence in the US? Or can they just re apply for the green card?

Yes... to re-apply is not an easy process. If you're barred from entering US, it's recommended to consult immigration attorney.

Can they deport someone or ban someone JUST for not keeping up their residency in the US? Just by not being in the country..