There isn't a hope in hell that the complaint would ever be followed up for the first one. Connecting "supporting IS" to Islam in general would be very difficult, whereas sexual identity is a specific protected sector. The second maybe, but extremely unlikely.
Northern Ireland has its own...
Supporting IS isn't protected under anti-discrimination law
Zionist settlements probably aren't but I'd leave that up to the lawyers.
If you can find a Muslim run bakery in NI I'd be quite surprised, ditto a non-Christian run one at all actually.
Bakery's fault entirely for taking the order...