You should go brush up on your Strunk & White. "Those" is the plural of "that". It is a plural pronoun used to narrowly specify the subject. "They" is a general plural pronoun used widely and inclusively refer to the subject. The two words are not interchangeable.
Unlike the general reference to Catholics you are alluding to, my reference was to the specific group who are either too intellectually incapable, too intellectually lazy or are too intellectually dishonest to learn the actual teachings of the Church before spouting off.
This is not another case of "Do as I say, not as I do", it is another prime example of the attempted interpretionan original intent without a firm grasp of the linguistic concepts and meanings involved.
Peace be with you.
Careful, your “benignity” is showing.