* Loss of control over local affairs: Canada West (Ontario) would have to cede control over some of its local affairs to the federal government. This could lead to policies that were not in the best interests of the province.
* Increased taxation: Joining Confederation would likely lead to increased taxation in Canada West (Ontario) to pay for the cost of the new federal government.
* Increased debt: Joining Confederation would likely lead to increased debt for Canada West (Ontario) as the province would be responsible for its share of the existing federal debt.
* Reduced representation: Canada West (Ontario) would have less representation in the federal parliament than it would if it remained a separate colony.
* Potential conflict with other provinces: Joining Confederation could lead to conflict with other provinces over the allocation of resources and power.
* Loss of cultural identity: Canada West (Ontario) had its own distinct culture and identity, which could be diluted by joining Confederation.