Как не создавать
<app-post _ngcontent-jxd-c17="" _nghost-jxd-c16="">
? шаблон рушится
<app-posts _ngcontent-jxd-c18="" _nghost-jxd-c17="">
<div _ngcontent-jxd-c17="" class="container">
<div _ngcontent-jxd-c17="" class="row">
<app-post _ngcontent-jxd-c17="" _nghost-jxd-c16="">
<div _ngcontent-jxd-c16="" class="col-6">
<div _ngcontent-jxd-c16="" class="padd_0-15 bg">1 1</div>
</div>
</app-post>
<app-post _ngcontent-jxd-c17="" _nghost-jxd-c16="">
<div _ngcontent-jxd-c16="" class="col-6">
<div _ngcontent-jxd-c16="" class="padd_0-15 bg">1 1</div>
</div>
</app-post>
</div>
</div>
</app-posts>
//app-post
<div class="col-6">
<div class="padd_0-15 bg">1 1</div>
</div>
//app-posts
<div class="container">
<div class="row">
<app-post></app-post>
<app-post></app-post>
</div>
</div>
//app-root
<app-posts></app-posts>