How about removing the DC mounted switch. Use wire nuts in the box and put a box cover over the opening.
Second thought: Make sure the DC mounted swx is "On" and put a baggie, or a can or a whatever over it to keep the dust away.
I have a remote on my DC. It was about $25. That is really nice because it came with two controllers. I have a controller at each end of the shop. Mine was from Penn State Industries. It handles my 220v 15amp motor.
I have other remote controllers for lighter tasks. HF sells a group of three with three switches. In other words any one controller controls any of the three circuits. Home Depot sells remotes at Christmas time. However, they are a bit wimpy and I would use for lights only.
Of the lights I use in the Shop, the switch for the one nearest to the door into the house is about 12 feet. I have a remote for an "enter and leave" light. It was cheaper and easier than adding wiring to have one shop luminaire controlled by the door to the house. It keeps me from breaking my leg when I close the shop down and am 12 very dark feet from the door (of course I never have any obstacles in the way to worry about in the dark).
First of all you have to be smarter than the machine.