In american history who were the white ethnics?

Immigrants from Europe, is the right answer.

Explanation:

The term White ethnic is used to describe the descendants of settlers from Central, Southern and Eastern Europe, the Caucasus, Ireland and France etc. Basically, these were White Americans who were not White Anglo-Saxon Protestant. in short, they were European settlers whose customs and language differed from the original White Anglo-Saxon Protestants.

your list doesn't mention any of them at all.

and what does "these" mean anyway ?

interest groups send representatives to state capitals and to washington, d.c. to put pressure on members of congress and other policymakers. they engage in lobbying, or the organized process of influencing legislation or policy. lobbying can take many forms. interest groups can testify in congressional hearings.