Correct Limit for Entries with IF statements
You can restructure your code in two different ways here. But firstly let's see what's the issue with your current implementation. Currently you always fetch 2 entries with your entry query (assuming you have at least 2 entries in total). After that you even filter them further according to the user login status and the use country. This way you'll always end up with 2 or less entries remaining. What you want is always exactly 2 entries.

A) Build your query with the user country în mind. You may have a switch statement to build a query with the country filter and one without the country filter. If it's hard to bake the country into the entry query you could B) fetch all entries of that section and then filter them down to the country and count you want to have. (This could have performance caveats depending on how many entries you have. You may want to cache the query results. But watch out when caching user specific queries. You have to use unique caching keys otherwise user A could see the content of user B.)

I can't show you an exact implementation of the query with country because it's not totally clear to me what's going on in your sections and fields. You may explain the articlesWhitepapers section further.