Deleted member 1487
Dont be fooled, the Hungarian people also wanted a huge country. It was sth that all nationes without their own country wanted. A huge, romantic state that has imperial power and prestige (ex. Greater Serbia, Greater Croatia, Greater Slovenia, Greater (insert name here)...). Im not sure if reason would overcome these dreams, but the Hungarians of that time considered the Treaty of Trianon as theft of their "national territory", despite the fact Hungarians were vastly outnumbered minorities in these perticular areas.
Don't confuse the Hungarian people with the Hungarian political leadership. There were some of the peasantry that were fooled by the trappings of empire, thinking that the glory of the nation was their aggrandizement, but an increasing number, jumped up by the war, realized that they were being exploited by their nobility. By the end of the war OTL they realized that a nation under their leaders was not an option, which resulted in the deaths of a large percentage of the notables in the country. If the groups run by Tisza declared an end to the empire and a breaking off, they were dead men walking. Then the Romanians come (depending on POD), and for sure the Habsburgs. The Austrians will bring promises of wider franchise (something the Hungarian nobility had been squashing- they were already forced to rig votes and intimidate voters as it was, any increase in franchise means they lose their stranglehold on the nation instantly) and perhaps even free land for veterans (really a land redistribution from the defeated nobility), which would endear them to a large part of the population.