Can't use Function as a control on Mac

Dear Mojang,

I play Minecraft on Mac and I have always used the function key as my sprint key, but 1.13 there is a problem. I can no longer use function as my sprint key (or any other control) which is very irritating. I have tried this on other Macs and know that it is a big issue not just on my computer. I would normally just use the 'Control' Key to sprint, but I cannot as I like to hold down my sprint button and PVP (Left Click) and on Mac, pressing Control + Left Click is a shortcut for Right clicking making it impossible to PVP and sprint at the same time. It would be extremely helpful if you could either;

a) Let Mac users use Function as a control

b) Inform me how to disable Control + Left Click = Right Click

c) Automatically disable Control + Left Click = Right Click when launching Minecraft on Mac

Thanks!

ThatEurekaDude