In theory you can add a dye to color it red, but that wouldn't make it a real red wine. Real red wine is made from from another kind of grape than the white. You might as well try to turn venison into pork.
Well, depends on the meat. Red wine for red meat, white wine for white meat.
Marsala is a red wine.
You can make white wine out of red grapes but you can't make red wine out of white grapes
Red wine marinade looks pretty common- see below sites
red
Not only white grapes. Remember, you can make white wine from red grapes, but not red wine from white grapes.
Blossom Hill do a red, a white and a rose wine.
Probably Hock wine (i.e. German white wine) !!
Consumers tend to prefer red over white wines.
They are equivalent in this regard.
You'll generally be safe with red wine for red meat and white wine for white meat.