Not at all. Read verse 2 which clearly states that Jeremiah addressed his words to the people of Judah and the inhabitants of Jerusalem. Read verse 3 which refers to 'You people', verse 4 again right through to verse 7 again adressed to the Jewish people. The passage from 8-11 is clearly marked for God's people as an oracle and also by extension included an oracle for the nations which further specified from 12. So even a cursory reading indicates that those verses are for Judah alone proving the Josephusian formula of exile-servitude-desolation.
Again, you selectively interpret scripture in a rediculous manner.
Verses 1 and 2 introduce the part of the prophecy that immediately relate to Judah, specifically the reason for what will happen to them, because the Jews had not repented despite repeated requests, as explained in verses 3 to 6. Verse 7 indicates that Judah's opportunity to repent had ended.
Verse 8 says "this is what Jehovah of armies has said". (There is no indication that the 70 years had not already begun, only that Jehovah had decided what would happen - speculatively, if Judah had repented it may have escaped judgement but it is unlikely that Babylon's rise to power or the impact on other nations would have changed, as confirmed in verse 29.) Verses 8 to 11 relate that Nebuchadnezzar would be sent against "all the families of the north", "all these nations round about", "all this land", "these nations", which would include Judah but can by no means be restricted to it. Verse 11 explicitly states that "nations will have to serve the king of Babylon seventy years". (The 70 years are applied only to nations serving Babylon, not specifically of the bringing of Babylon against the nations and desolating them. As the Society properly points out in its description of the 70 years for Tyre, the 70 years refer to its period of dominance.) In view of the entire context, there is no way of validly restricting the descriptions in verses 8 to 11 to only Judah.
Verses 12 to 14 indicate that after the 70 years had ended, Babylon and its king would begin to be judged. There is no room for its judgement to begin before the end of that period, and the first and most significant part of Babylon's judgement came in 539, which ended the 70 years, (which is also confirmed by verse 26).
Verses 15 and 16 instruct Jeremiah to take the judgement to the nations. The only judgement that has been indicated for the nations is in verses 8 to 11, so it is essential that those verses refer to other nations (although that is blatantly obvious from the verses themselves anyway).
Verses 17 to 26 go on to list the nations that would receive the judgement, and includes that at the end, Sheshach (Babylon) would also receive judgement.
Verses 27 to 29 indicate that the nations will not avoid punishment. The rest of the chapter indicates the severity and the extent of the judgement against the nations.
