Latest pole suggests 70% of Ukrainians don't want the language laws changed. Maybe in 50-70 years the laws can be changed but not today and not now.
Ukrainians have been a fragmented group since the 1400's largely due to external influence of Poland from the West, Tatars and ottomans from the South and Russian and Mongols from the East. In this sense they now need to have as much commonality as possible to break this centuries old divide.
Language is the first step in healing this rift. Democracy and the truth about the past is the second step. The third is a stable and functional economy.
Language brings people together as one. It becomes the core to which someone from the East identifies with someone from the West.