I gave daleel with example of water...!!!
or if u r asking for scholarly fatwa on this topic, YES, i have scholarly fatwa BUT scholar i heard it from doesn't have online material from him so i can't give his web link. But if u search like "fatwa gelatin" u'll find many fatwas allowing gelatin.
u r contradicting urself. U said there is no filtration then urself said it goes thru chemical processes.......
How about if someone extract
pure calcium(Ca) from bones of pork & start selling in market......!!!
This is even more simple than water(
H2O). Will u take that calcium???
& by-the-way gelatin is a chemical extracted after purifying & chemically extracting
processing collagen. & Many of
medicines & cod-liver-oil capsules, primrose oil capsules etc rather ALL capsules have same gelatin
whose source we cannot confirm. If gelatin is haraam then we should stop taking gelatin containing supplements & many foods available in market, right from yogurt, ice creams, low-fat-milk coz they use gelatin to take fat out, beverages coz they use gelatin to clear beverages like fruit juices of pulp, jellies & salads,,,, let alone this chocolate mentioned in OP.
Now, there's nothing like halal gelatin or haraam gelatin. Gelatin manufacturers don't care about muslims. They would buy whatever raw material would be cheaper for them.