There are some services that should be consilidated. For instance, the 911 services of the city and the county should be merged to provide better services and save taxpayer money.
But a complete city county merger could draw thousands of Allen County residents into Fort Wayne against their will. No neighborhood should be annexed against the will of its residents, just as the United States should not be allowed to annex another country.
I will concede that it may be in the best interests of current Fort Wayne residents to expand this town from the Whitley County line to the Ohio Border. And it may benefit US citizen to expand the American Empire so that it stretches from the Yukon to the Yucatan. But it would be wrong.