This was not redlining if we are to believe the claims of the business owner. The policy was not because of the racial or ethnic composition of those areas but because of the high risk of return abuse from those areas. Let's for arguments sake assume that most residents of large inner cities in the US are black and Hispanic. This is certainly true in some cities. Insurance premiums are higher there not because of the ethnicity of the residents but because of the higher rate of claims from those areas.
It doesn't matter what she claims, because at the end of the day the policy was targeting highly populous Jewish towns. Just like banks that would avoid giving loans in high risk black neighborhoods - because they would on average perform poorly - and that was illegal.
Insurance isn't one price fits all. Every person, neighborhood, car, age, drivers experience, etc., gets priced differently based on statistical risk factors that have nothing to do with race or religion.
The website was one-price-fits-all. Unless you lived in certain Jewish towns.
There are laws in this country, and compliance with the law is part of the cost of doing business.