Is GM corn becoming vital for Europe on account of climate change?

Dow AgroScience and Bayer CropSciences and others are fighting the battle to lead in Europe fast growing market of seeds and agrochemicals for corn grain and silage. Genetic modified corn and their products will enter the food chain.
This is unwanted by the consumer,however, climate change brings mild winter for Europe. Pests will not be controlled by nature any more. Other weeds will invade the fields. Politicians are helpless to counter this evolution. More agrochemicals will be necessary. GM traits may be a solution for less chemicals on the fields.

Do we have to accept GM food to cope with the unavoidable climate change?