Are they *REALLY* comparing planned anti-gay protest to 1963 march on Washington?!

I can't 100% place the image, but based on crowd size and geography, I'm pretty sure that the graphic in this promotion for NOM's upcoming "marriage marriage" against equality…

…is an image from 1963's historic march featuring Dr. King's legendary "I Have A Dream" speech. It seems to be a cropped variation of this widely distributed pic:

I mean, really? They are seriously going to go there? Because if they are planning on equating their lil' march against civil marriage rights for certain kinds...