Does this sign make you want to add a sic and a sick notation?

Here’s the sign. Under seige (sic)? I thought it was “i” before “e” except after “c” or when followed by “a” as in neighbor (especially an “a” as in racist neighbor). What would you bet that if you pointed out the error, the sign’s author would inform you that, “Your (sic) stupid.” as a “bright” riposte? Is there any question that such hatred is sick?