Got an Answer?
You have to have some sort of rapport with your kids teachers, especially when so young. You need to be able to communicate with the staff any concerns that you have or that they might have. I agree with a previous poster. What happens if you ask them a direct question or how do they answer a concern you might have about your child? If you feel they they are communicating effectively with you, then move him and also write a letter to the principal on why you are moving him. You might not be the first parent to feel this way. I think that your also need to consider how your child might react to moving and change and also what is the other daycare's programme like?
Could your anxiety be making you think more of it than what it really is? Try asking them a question instead of saying hello and see how they respond to you. If it's still rude and arrogant then yes I'd probably keep him at daycare. There shouldn't be attitude from staff at kindy.
I'm the invisible parent at pick up and drop off. For reasons unknown to me, people (other than the teachers) ignore my attempt at friendliness. It's horrible. But my kids love their school and thrive there. And so I hold my head up high, focus on my kids and ignore those rude cows. As I know I'm a decent person, I figure their behaviour says more about them than it does me.
It really is up to you what you do though. If you think he will be just as happy and get just as much from full time day care, (and you can afford it) then continue to send him there and ditch kindy. But, just remember next year he will be starting compulsory school. And you may very well encounter these same people. So you do need to find a way to either break the ice and have them notice you enough to be civil, or find a way to handle it without feeling anxious twice a day, drop off and pick up (and that is a lot of time considering how long your child will attend school). Or, have a fresh start at a new school where you will meet new people. Best of luck, I know how hard it is being the ignored parent, despite your best efforts xoxox