What do you think? Is the level of satanic resistance/attack to any given work of God proportionate
to the threat of such work to what he thinks is his kingdom?
I'm not sure if I understand the question.
There are certain works of God that Satan's armies see as bigger threats, if that's what you are asking.
Even as a young believer, I was targeted by demons.
I didn't think of myself as any threat to Satan's minions, but they sure went out of their way to target me and put a contract out on my life.
There were all kinds of random attacks from mostly strangers.
I didn't think I was making a difference for God's kingdom as a young believer.
However , Looking back I was making progress and trying to lead others to Christ. The Lord introduced me to opportunities to lead in ministries too. He gave me an excellent Sunday School teacher who was my early mentor. My parents were open to me going to church services and soul winning. That was a major plus! I needed that training more than my martial arts .
There were way too many physical attacks to be coincidental. Once they manifested through my girlfriend at the time, I realized that there was organized spiritual warfare through flesh and blood.
Christians quote Ephesians 6" we wrestle not against flesh and blood", which is true. However they see it out of context with the rest of the Bible as if Satan doesn't use people or commit violence.
Satan certainly DOES send demons and people to do physical violence.
Looking at Mark's gospel, Jesus was casting out demons more than Bruce Lee kicked butts in his movies. There were more demonic attacks during the time Jesus was on earth than any time we have recorded in history. Some, like Legion, were not able to be stopped. They broke chains and were a threat to others .