Parbox on the table not vertically centered and remove space before enumeration but topsep=0pt failed

My problems:

1. I’m using parbox to give line break on the table but not vertically centered. If you zoom in on the head of the table, you’ll see it’s centered on the bottom, but i want it on the middle. (Goal: vertically centered).
2. line start of the enumeration is different with the line start of the text. Seems like there’s a vertical space before the list, and i want to remove that. Using topsep=0pt give me nothing. (Goal: the same line start).

This is my MWE:

documentclass[a4paper,12pt,oneside,openany]{book}
usepackage[a4paper, inner=4cm, outer=3cm, top=4cm, bottom=3cm]{geometry}
usepackage{longtable}
usepackage{lipsum}
usepackage{pdflscape}
renewcommand{arraystretch}{2.0}
usepackage{enumitem}

begin{document}
    chapter{BOO}
    lipsum[1-2]
    newpage
    thispagestyle{plain}
    begin{landscape}
        section{My Table}
        begin{table}[h!]
            centering
            caption{This is a table}
            begin{tabular}{|p{3cm}| p{3cm} |p{3cm}|p{3.2cm}|p{2.5cm}|p{2.5cm}|p{3cm}|}
                hline
                multicolumn{1}{|c|}{textbf{Whatever}} 
                & multicolumn{1}{c|}{parbox[H]{3cm}{centering textbf{Random  Text}}} 
                & multicolumn{1}{c|}{textbf{Whatever}} 
                & multicolumn{1}{c|}{textbf{Whatever}} 
                & multicolumn{1}{c|}{parbox[H]{2cm}{centering textbf{Random  Text}}} 
                & multicolumn{1}{c|}{parbox[H]{3cm}{centering textbf{Random  Text}}}
                & multicolumn{1}{c|}{parbox[H]{3cm}{centering textbf{Random  Text}}}
                hline
                lipsum[2][1]
                & begin{enumerate}[left= 0pt, label=arabic*), noitemsep, topsep= 0pt]
                    item lipsum[1][1]
                    item lipsum[1][1]
                end{enumerate} 
                & begin{enumerate}[left= 0pt, label=arabic*), noitemsep, topsep= 0pt]
                    item lipsum[1][1]
                    item lipsum[1][1]
                end{enumerate} 
                &begin{enumerate}[left= 0pt, label=arabic*), noitemsep, topsep= 0pt]
                    item lipsum[1][1]
                    item lipsum[1][1]
                end{enumerate}
                &begin{enumerate}[left= 0pt, label=arabic*), noitemsep, topsep= 0pt]
                    item lipsum[1][1]
                end{enumerate}
                &lipsum[2][4]
                & lipsum[2][1]
                hline
            end{tabular}
        end{table}
    end{landscape}
    
end{document}

Help me please. Thanks!

documentclass[a4paper,12pt,oneside,openany]{book}
usepackage[inner=4cm, outer=3cm, top=4cm, bottom=3cm]{geometry}
usepackage{lipsum,pdflscape}

% new:
usepackage{makecell} % for 'makecell' macro
usepackage{ragged2e} % for 'RaggedRight' macro
usepackage{enumitem} % for 'newlist' and 'setlist' macros
newlist{ColEnum}{enumerate}{1}
setlist[ColEnum,1]{label = arabic*), left = 0pt, nosep, 
          before= {begin{minipage}[t]{hsize}RaggedRight},
          after = {end{minipage}}}

begin{document}
setcounter{chapter}{2} % just for this example
thispagestyle{plain}
begin{landscape}
section{A section header, followed by a table}

begin{table}[h!]
centering
caption{This is a tablestrut}
begin{tabular}{|p{3cm}   | p{3cm}   | p{3cm}   |
                 p{3.2cm} | p{2.5cm} | p{2.5cm} | p{3cm}|}
hline
bfseriesmakecell{Whatever}  & 
bfseriesmakecell{Random  Text} & 
bfseriesmakecell{Whatever} & 
bfseriesmakecell{Whatever} & 
bfseriesmakecell{Random  Text} & 
bfseriesmakecell{Random  Text} & 
bfseriesmakecell{Random  Text} 
hline
RaggedRightlipsum[2][1] & 
begin{ColEnum}
   item lipsum[1][1]
   item lipsum[1][1]
end{ColEnum} & 
begin{ColEnum}
   item lipsum[1][1]
   item lipsum[1][1]
end{ColEnum} &
begin{ColEnum}
   item lipsum[1][1]
   item lipsum[1][1]
end{ColEnum} &
begin{ColEnum}
   item lipsum[1][1]
end{ColEnum} &
RaggedRightlipsum[2][4] & 
RaggedRightlipsum[2][1] 
hline
end{tabular}
end{table}
end{landscape}
    
end{document}