I believe this topic has been discussed before, and in my view, established that 'khinzeer' does not mean 'pig/swine' at all. If it does, then there are internal contradictions in the Quran, and the Quran should not be interpreted in a manner which renders it as internally contradictory.
5:5-6 - They ask thee what is made lawful for them. Say, ‘All good things have been made lawful for you; and what you have taught the beasts and birds of prey to catch for you, training them for hunting and teaching them of what Allah has taught you. So eat of that which they catch for you, and pronounce thereon the name of Allah. And fear Allah. Surely, Allah is quick in reckoning.’ This day all good things have been made lawful for you. And the food of the People of the Book is lawful for you, and your food is lawful for them.
6:147 - And to those who are Jews, We forbade all animals having claws, and of the oxen and the sheep and goats did We forbid them their fats, save that which their backs bear or the intestines, or that which is mixed with a bone. That is the reward We gave them for their rebellion. And most surely We are truthful.
3:94 - All food was lawful to the children of Israel, except what Israel forbade himself before the Torah was sent down. Say, ‘Bring, then, the Torah and read it, if you are truthful.’
4:161 - So, because of the transgression of the Jews, We forbade them pure things which had been allowed to them, and also because of their hindering many men from Allah’s way.
16:119 - And to those also who are Jews, We forbade before this all that We have related to thee. And We wronged them not, but they used to wrong themselves.
Based on the verses above, whatever is lawful for Muslims is lawful for the People of the Book and vice versa. 5:5-6 are the sum total of what was forbidden to Jews. As pigs do not have claws, pigs are not on the list. While I have seen some fall into debate about what type of feet pigs have, such a debate is irrelevant since 5:5-6 also state that the sole reason for these prohibitions was rebellion. Unless Muslims wish to be a party to such rebellion, the above prohibitions do not apply to them.
As the word 'khinz' literally refers to something as 'foul', khinzeer may just be a reference to contaminated, rotting, decaying, unclean meat generally, and not to a specific animal which, later, came to be called 'khinzeer'. In Leviticus and Deuteronomy, the equivalent word is 'chizer', and the reason given for prohibiting it is because it chews the cud. Apparently, along with not flying, pigs do not chew the cud.
As interpretive methodology, we should be careful when interpreting the Quran's prohibitions.
5:88-89 - O ye who believe! make not unlawful the good things which Allah has made lawful for you, and do not transgress. Surely, Allah loves not the transgressors. And eat of that which Allah has provided for you of what is lawful and good. And fear Allah in Whom you believe.
10:60 - Say, ‘Have you considered that Allah sent down provision to you, then you made some of it unlawful and some lawful?’ Say, ‘Has Allah permitted you that or do you invent lies against Allah?
Based on these verses, out of caution and out of respect for these verses, I am loathe to prohibit more than I should.
Moreover, I will never follow an interpretation that renders the Quran as internally consistent, and, as noted above, if 'khinzeer' means 'pig/swine', the Quran is internally inconsistent.
