Unfortunately regular users doesn't have much say on the matter as it will be decided by big companies with significant share in the bitcoin world.
Regular users can refuse (do not accept) forked bitcoins as payment. Or they can migrate to services which stay on consensus path.
Big mining pools are composed of many small miners (hashers). Big companies would not find their BTC as valuable if common people (and/or significant players) won't accept them as payment or as wage or as collateral or whatever.