There is no contradiction for mainly two reasons:
Quakers did not try to convert people. Puritans were not tolerant of other religions in their community. Those that refused to follow the Puritan religion were forced to leave town.
The Romans were actually pretty open minded and tolerant towards other religions, but only if they did not cause any problems, probably such as trying to convert others, protesting, causing riots, etc.
Some religions consider it offensive if you convert to OTHER religions.
Yes we are. Even though our past with other religions is not pleasant, we do not dislike other religions. It is true that Catholicism is tolerant of other religions, although it took a long time, and the success of protestantism for this to be a fact. The church eventually had to give up the fight and be accepting once so many other nations became predominantly protestant, and in those countries the Catholics often became the persecuted. However the view of most Catholics well into the 20th century, and the official view of the church itself was that no one but Catholics could be saved. This changed after Vatican II, inasmuch as separated brethren could be saved if they were truly faithful Christians because of the fact that they were, because of no fault of their own ignorant of the truth of the Catholic Church. In other words they could only be saved as de facto "adopted Catholic Christians". One can only wonder what would have happened if Protestantism had failed and been practiced by an extremely small minority in all nations. In this case it is arguable that the Inquisitions would have continued for a much greater period. There are conservative Catholics today, in a minority, but still a fairly sizable one, who still consider Protestants unsaved because of their faith, and would quite readily put into place a Catholic theocracy in the United States if they could. I'm a convert of 26 years, and I know what I'm talking about, I've met these people.
No, when they convert?
The Romans were actually pretty open minded and tolerant towards other religions, but only if they did not cause any problems, probably such as trying to convert others, protesting, causing riots, etc.
Who attacked other religions and tried to convert others the Spanish or the Aztecs ?
While Hindus are generally tolerant of all religions, including Islam, Islam condemns non-Muslims. You might be tolerant; he might be tolerant; but likely your family and and religious community will not tolerate or welcome his even were he to convert. Marriages where the families are very inimical, especially for such a deep and basic reason as religion and all that it means, have little chance of success.
Non-proselytizing religions.
A convert or a proselyte.
The sales man got her to convert from a gas stove to an electric stove. I decided to convert religions.
they were hoping the jews would convert