I am building a short elevated floor for my pop up blind and was going to secure it to the floor but am unsure on what to use. Any ideas on what is best glue, staples.. don't want anything that will tear it up to bad

What about screwing to the floor those electrical conduit clips close to the grommets on the pop up and tie the base down, do the same for the other tie downs. Could use screws and fender washers at the grommets also.

I use these fastener clips for securing RV awning - One end is a plastic alligator like clip, with a loop on the other. The clip closes and locks onto canvas, and then other end can be secured with bungy, pr even a nail through the eyelet onto the base. Here is a link to see - https://www.amazon.com/dp/B019M6AXQI/ref...la-313308481166

How about using strips of wood along the outside edge of popup. 2 inches wide and 3/4 inch thick. Screw at each end and maybe one screw in middle.

I run a wood screw through the stake loops at the bottom. Had a kryptek blind on a platform from October last year till last week. Was in great shape.