https://afanl.wordpress.com/2018/01/30/english-3-2-2018-anti...
https://society6.com/product/ancap-flag1525938_wallpaper?sku...
https://www.cafepress.com/+red_triangle_antifascist_antifasc...
https://www.redbubble.com/i/canvas-print/Antifascist-Red-Tri...
https://www.redbubble.com/i/postcard/Antifa-Triangle-by-Joes...
Mind you, I don't condone Trump using the logo as a mechanism to target a group.
One of the redbubble links is not even indexed yet in my google search and the other is not a red triangle, but a flag in a triangle.
The other link don't even feature an "upside down triangle" design, and is from Utrecht, which has a red triangle in its own flag. There's not really a connection.
> https://www.cafepress.com/+red_triangle_antifascist_antifasc...
Nobody actually involved with an Antifa group is selling Antifa-themed cafepress merchandise. The idea is laughable.
"MartStore", the vendor in question, sells a variety of politically themed merchandise, including "thin blue line" and "Trump 2020" designs. https://www.cafepress.com/profile/martstore
the first link is referencing this, the second is not triangle but red/black flags, the third one is laughable, don't know about the fourth one and the last one is the anarchist flag.