Nobody really had anything against Queen Victoria. So let's say the law is changed and now the firstborn child of the Queen is first in line for the throne. What happens next?
Its ASB I'm afraid, completely at odds with British society at the time.
Women had very few rights at the time of the birth of the Princess Royal and certainly no one would have advocated that a woman's right to inherit the crown should be superior to her brothers!
Victoria may have been a woman but she was no advocate for women's rights, it is unlikely she would have advocated that her eldest daughter should take precedence over her sons. Her reaction to the birth of the Princess Royal was to proclaim that it would be a boy next time!
Equally, Victoria's ministers were all men, predominantly from the upper classes, women could not inherit noble titles and few benefited from their wealth of their father, everything was supposed to go to the eldest son.
Your talking about shaking up the whole British social structure.
Its worth noting that it wasn't until the 1880s that a married woman was even legally allowed to own property. Until that time, anything "owned" by a woman, was legally in fact treated as her husband's property.