Sonically speaking yes he is. There's nikkas out now that rap like this and rap over those type of beats been like that for more than a decade now. Cash Kidd most notably. Especially his vocal inflection.
Hell it's nikkas in KCMO and KCK that rap like him.
I got every Esham album up to a certain point, a huge fan but no...... maybe some of the earlier beats on the first album are similar but he ha a wide variety of beats a lot which were more rock influence. None of these new era Detroit rappers mimic that. The people he influenced are Eminem, ICP, horrorrcore but no one raps like that, he actually sounds a lot more like an east coast rapper than anything. I don’t see the connection.
I hear people say the same about blade icewood who I knew personally and honestly I don’t see that either.